{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["used for", "evaluate for"], "input": "-LRB- Ramshaw and Marcus , 1995 -RRB- have introduced a `` convenient '' data representation for chunking by converting it to a tagging task ."}
{"used for": [{"subject": "data representation", "object": "chunking"}], "evaluate for": []}